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Description
This MRCOOL DIY 5th Gen mini split system pairs a 36,000 BTU outdoor condenser — rated 23 SEER2 and 9.9 HSPF2-4 — with 4 ceiling cassette air handlers (12K + 12K + 12K + 12K BTU), giving independent heating and cooling to 4 separate rooms from one outdoor unit.
Highlights
- Supports 4 zones at once, sized 12K + 12K + 12K + 12K BTU, each with its own ceiling cassette air handler for room-by-room temperature control.
- Pre-charged DIY Quick Connect line sets (R-454B refrigerant) eliminate on-site vacuuming and charging, so installation goes faster without a professional.
- Included DIYPro cable removes the need for electrical conduit, simplifying the DIY install and adding weather protection.
- Follow Me function on the included wireless remote adjusts airflow based on the remote's location for more consistent comfort.
- SmartHVAC app support (iOS/Android) plus Amazon Alexa and Google Assistant compatibility lets you control each zone, set schedules, and monitor energy use.
- Low-profile OuttaSight ceiling cassettes fit flush between 16-inch ceiling joists (including pre-manufactured I-joists) with no ductwork or extra wall space needed.
Details
Avermont Direct is an authorized MRCOOL dealer, and this 4-zone DIY 5th Gen mini split system is built for homeowners who want multi-room comfort without a professional installation. The 36,000 BTU condenser powers 4 ceiling cassette air handlers (12K + 12K + 12K + 12K BTU) — individually, each zone is rated for 12K BTU up to 550 sq. ft., 12K BTU up to 550 sq. ft., 12K BTU up to 550 sq. ft., 12K BTU up to 550 sq. ft. — making it a good fit for cooling and heating several rooms or a small home addition from a single outdoor unit. The system is backed by a 5-year parts warranty and a 7-year compressor warranty, with a Limited Lifetime Replacement warranty available through MRCOOL Care Program enrollment.
Need Help?
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
| Installation Type | DIY — no HVAC professional required |
| Zones Supported | 4 |
| Condenser Capacity | 36,000 BTU |
| Condenser Efficiency | 23 SEER2 / 9.9 HSPF2-4 |
| Air Handler Type | OuttaSight Ceiling Cassette |
| Air Handler Capacities | 12K + 12K + 12K + 12K BTU |
| Estimated Coverage | up to 1,500 sq. ft. total (condenser rated) |
| Refrigerant | R-454B, pre-charged in DIY Quick Connect line sets |
| Parts Warranty | 5 years |
| Compressor Warranty | 7 years |
| Extended Warranty | Limited Lifetime Replacement with MRCOOL Care Program enrollment |
| Certification | Intertek listed 5031495 |
- DIYPro cable eliminates the need for electrical conduit during install.
- Follow Me function and included wireless remote per air handler.
- SmartHVAC app with Amazon Alexa and Google Assistant compatibility.
- Two-stage DC motor, advanced filtration, and an Elevation function that lowers the filter panel for easy cleaning.
Shipping
- Orders of $200 or more ship free within the contiguous United States. Orders under $200 ship for a flat $9.99.
- In-stock items (shown as “In Stock” on the product page) ordered before 1:00 PM Pacific Time on a business day typically ship within 1–3 business days. Delivery usually takes 3–7 business days after shipping.
- Backorder, Partial Backorder and Custom Order items are not covered by the 1–3 business day processing time. Their estimated restock or ship time is shown in the stock status on the product page before you order.
- Large items ship by freight and are typically delivered curbside. Smaller items ship by ground carrier such as FedEx or UPS.
- We ship to the 48 contiguous states. We do not ship to Alaska, Hawaii or P.O. boxes.
- Please inspect your delivery on arrival and report any concealed damage or missing parts within 24 hours.
Returns
- Returns can be requested within 30 days of delivery. Items must be unused, uninstalled, in new resalable condition and in their original packaging, including the pallet if delivered on one.
- Approved returns are subject to a 15% restocking fee, and return shipping costs are the customer’s responsibility unless the return is the result of our error.
- Installed or used products, custom and made-to-order items, clearance or final-sale items, and replacement parts and accessories are not eligible for return.
Full Shipping Policy Full Return Policy Questions? +1 (844) 455-3695